SourceVu will show references to i2c_master_cmd_begin() from the following samples and libraries:
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i2c_master_cmd_begin() function
Send all the queued commands on the I2C bus, in master mode. The task will be blocked until all the commands have been sent out. The I2C port is protected by mutex, so this function is thread-safe. This function shall only be called in I2C master mode.
Syntax
esp_err_t i2c_master_cmd_begin(i2c_port_t i2c_num,
i2c_cmd_handle_t cmd_handle,
TickType_t ticks_to_wait);
Implemented in ![]()
i2c.c:1531
Return value
- ESP_OK Success - ESP_ERR_INVALID_ARG Parameter error - ESP_FAIL Sending command error, slave hasn't ACK the transfer. - ESP_ERR_INVALID_STATE I2C driver not installed or not in master mode. - ESP_ERR_TIMEOUT Operation timeout because the bus is busy.
Examples
Code
Location
Referrer
Call Tree
from 0/7 examplesi2c_master_cmd_begin() is called by 5 functions and calls 17 functions:
Data Use
from 0/7 examplesi2c_master_cmd_begin() reads 29 variables and writes 7 variables: